Some standard content:
ICS13.030.50
Machinery Industry Standard of the People's Republic of China
JB/T9053-2000
Impact Dust Collectors
Roto-cloned dust collectors
2000-04-24 Issued
National Bureau of Machinery Industry
2000-10-01 Implementation
JB/T9053-2000
This standard is a revision of JB/T9053-1999 (ZBJ88004-88) "Technical Conditions for Impulse Dust Collectors". Compared with JB/T9053-1999, the main technical content of this standard has been changed as follows: the "Scope" chapter has been added. This standard replaces JB/T9053-1999 from the date of implementation. This standard is proposed and managed by the Environmental Protection Machinery Standardization Technical Committee. This standard was drafted by Harbin Environmental Protection Hydrogen Equipment Industry Company. 1 Scope
Machinery Industry Standard of the People's Republic of China
Impact Dust Collector
Roto-clonedust collectors
This standard specifies the technical performance of impulse dust collectors (hereinafter referred to as dust collectors). JB/T9053-2000
Replaces JB/T9053—1999
This standard applies to the sampling inspection of impulse dust collectors before leaving the factory, the assessment of product quality during use, and the inspection of their performance by the national quality and technical supervision authorities.
Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 699 — 1999 | | tt | | GB/T 912 — 1989 | | tt | | GB/T1176 — 1987 | | tt | 4
GB/T3274—1988
GB/T5612—1985
GB/T 6414—1986
GB/T 9787—1988
GB/T10089—1988
GB/T10095—1988
GB/T11351-1989
GB/T13306—1991
GB/T15187—1994
3 Definitions
This standard adopts the following definitions.
3.1 Impulse dust collector
High-quality carbon structural steel
Technical conditions for hot-rolled thin steel plates and strips of carbon structural steel and low-alloy structural steel Cast copper alloys
Basics of limits and fits Part 3: Numerical tables of standard tolerances and basic deviations General tolerances Unspecified tolerances for linear dimensions
Alloy structural steel
Technical conditions for cold-drawn steel materials of high-quality structural steel
Hot-rolled thick steel plates and strips of carbon structural steel and low-alloy structural steel Cast iron grade representation method
Dimensional tolerances of castings
Hot-rolled equilateral angle steel
Inner dimensions, shape, weight and allowable deviations Accuracy of cylindrical worms and worm wheels
Accuracy of involute cylindrical gears
Tolerance of casting weight
Method for determining the performance of wet dust collector
A type of wet dust collector. The dust collector cavity is divided into two parts by the upper and lower blades on the water surface. After entering the dust collector, the dust-laden gas impacts the water surface, and large dust particles fall into the water. When the dust-laden gas passes through the S-shaped channel formed between the upper and lower blades, it stirs up a large amount of water, so that the water and air are fully in contact, and most of the dust particles are mixed into the water. The dust-laden gas is fully purified and discharged from the dust collector after dehydration. The dust captured by the wet dust collector settles in the water and is discharged from the dust collector by the scraper mechanism. The water content in the mud is relatively low. 3.3 Slurry discharge valve type The dust captured by the wet dust collector is discharged from the dust collector in the form of slurry by water through the valve, and the water content in the slurry is relatively high. 4 Technical requirements
4.1 The dust collector shall comply with the requirements of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 4.2 Performance and energy consumption of dust collector
a) Dust removal efficiency: greater than 98% (when the inlet dust concentration is greater than 2g/m3): b) Dust collector resistance: 980-1570P
c) Dust collector water consumption: funnel discharge valve type not more than 130kg/1000m3 (processing gas volume): scraper type not more than 45kg/1000m3 (processing gas volume)
4.3 The materials used in the dust collector shall comply with the provisions of Table 1. Table 1
Parts name
Reducer body
Flange
Q235-A (Q235-A·F)
ZQA19-4
Q235-A (O235-AF)wwW.bzxz.Net
4.4 The upper blade is allowed to be formed by splicing and pressing two steel plates, and the lower blade shall not be spliced. 4.5 After the steel is cut, the exposed edges shall be chamfered and burrs shall be removed. 4.6 The tensile strength of the weld shall not be less than 373N/mm2. 4.7 The material of the sealing gasket shall comply with the provisions of Table 2. Table 2
Dust collector working
Industrial rubber sheet or rubber asbestos sheet
Rubber asbestos sheet
Standard code
GB/T912
GB/T3274
GB/T3078
GB/T699
GB/T3077
GB/T1176
GB/T5612
GB/T9787
4.8 In addition to meeting the requirements of 4.3, other materials that have been proven to have no effect on product performance and lifespan may be used as substitutes after approval by the technical department and completion of formalities. 2
JB/T9053-2000
4.9 The joints of all parts of the dust collector shall be lined with the materials specified in Table 2 to ensure sealing. The manhole and inspection door shall be pressed tightly to prevent air leakage and water leakage.
4.10 The cast iron parts used in the dust collector shall meet the following requirements: a) The molding sand on the casting shall be cleaned, and the gate, riser, fleshy, scar, sand adhesion and sand inclusion shall be cleaned and polished. b) The casting shall not have cold cracks, pores, shrinkage holes, slag eyes, insufficient pouring and other defects that reduce strength or damage the appearance of the product. c) The dimensional deviation of the casting shall not be lower than the CT10 grade specified in GB/T6414, and the weight deviation shall not be lower than the MT10 grade specified in GB/T11351.
4.11 After the shell of the dust collector is welded and formed, the flatness of its surface shall not be greater than the provisions of Table 3 within the entire length. Table 3
Basic dimensions
Tolerance values
>120~315
>315~630
>630-1000
4.12After the blade is welded, its cross-sectional profile shall not exceed 1mm. >1000~2500
>2500~4000
4.13All machined parts without tolerances shall be manufactured according to IT14 grade of GB/T1800.3. All non-matching dimensions of riveted welded parts shall be manufactured according to V grade of GB/T1804.
4.14 The reducer shall meet the following requirements:
a) The transmission accuracy of the worm and worm wheel: The worm peripheral speed is greater than 3m/s and is manufactured according to the 7th grade accuracy specified in GB/T10089: the worm peripheral speed is manufactured according to the 8th grade accuracy specified in GB/T10089 when it is 1.5~3m/s: the 9th grade accuracy is manufactured when it is less than 1.5m/s; the side clearance specification is manufactured according to Dc. b) The transmission gears are manufactured according to 8-GJ in GB/T10095. c) The reducer shall be tested for 2h of idling operation. The temperature of the rolling bearing shall not be higher than 80℃, but the temperature rise shall not exceed 40℃. There shall be no abnormal sound during the test.
4.15: The center deviation of the bolt holes of the two connecting flanges shall not be greater than 1/6 of the bolt diameter. 4.16 There shall be no leakage or oil seepage at the places where the packing and the matching surfaces are installed. 4.17: All parts must be inspected and qualified. Purchased parts and outsourced parts must have quality certificates before they can be assembled. 4.18 Except for transmission parts, purchased parts and signs, the surface of the dust collector shall be painted with one coat of primer and two coats of topcoat, but the topcoat shall be sprayed after the trial run is qualified.
4.19 The inner surface of the dust collector and the inner surface of the reducer body shall be painted with two coats of red nitro enamel. 4.20 Before painting, the rust, welding slag, iron filings, dust and other dirt on the surface to be painted should be cleaned. 4.21 Before painting, the welds and local uneven areas can be smoothed with putty. 4.22 The painted surface shall not show rust under the paint film, the color tone shall be consistent, and there shall be no defects such as brittleness, peeling, curling, cracks and brush marks.
4.23 Under the condition that the user complies with the storage, use, installation and transportation rules of the dust collector, within 6 months from the date of shipment from the manufacturer, if the product is damaged or cannot work normally due to poor manufacturing quality, the manufacturer shall be responsible for repairing (or replacing) parts (or products) for the user free of charge.
5 Test method
The performance test method of the dust collector shall be in accordance with the provisions of GB/T15187. 3
6 Inspection rules
JB/T9053-2000
6.1 Each product can be shipped after passing the inspection of the quality inspection department of the manufacturer, and it should be accompanied by documents proving the quality of the product. 6.2 The inspection of dust collectors is divided into factory inspection and type test. 6.2.1 The items of factory inspection are:
a) No-load test:
b) Material inspection:
c) Processing and assembly accuracy inspection;
d) Welding quality inspection:
e) Appearance inspection:
f) Water filling test of the lower box, no water leakage: g) Ability to maintain water supply for a long time, stable water level: h) Other technical requirements specified in the order agreement 6.2.2 Type test should be carried out in the following cases: a) When the change of product design, process or materials used affects the performance of dust collector: b) For batch-produced products, each specification should be regularly inspected at least once a year. 6.3 Products undergoing type test should be drawn from the same batch of qualified products and tested according to the requirements of Chapter 4. 6.4 When doing type test, if one of the products does not meet the requirements of this standard, double the number of dust collectors should be drawn for retest of the unqualified items. If it still fails, the batch of products is considered unqualified. For unqualified products or parts, production should be stopped and the reasons should be found out until they are qualified.
6.5 The continuous time of the dust collector idling test should comply with the following provisions: a) Factory test shall not be less than 2h:
b) Type test shall not be less than 24h.
7 Marking, packaging, transportation and storage
7.1 Each product shall be fixed with a product label at the designated location. The size and type of the label shall comply with the provisions of GB/T13306. Its content is stipulated as follows:
a) Manufacturer name;
b) Product model and name:
c) Main performance parameters;
d) Implementation standard number:
e) Net weight, kg;
f) Factory number:
g) Year and month of production.
7.2 The dust collector can be packaged only after all inspection items are qualified. Before packaging, the exposed surfaces of the machined parts should be coated with anti-rust grease.
7.3 The packaging of the dust collector should comply with the following regulations: a) The whole product or the parts transported separately must comply with the requirements of land and water transportation and loading; 4
JB/T9053—2000
b) The packaging of the whole product or parts can be naked, packaged, bundled and boxed according to actual requirements. The packaging should ensure that no damage occurs under normal transportation conditions:
c) All products weighing more than 150kg should have slides: d) When packaging with wooden boxes, the dust collector must be firmly fixed on the base of the box. There should be a distance of 50~80mm between the dust collector and the box wall, and the middle should be tightly plugged with wooden or wooden and felt-covered support members. 7.4 The words and logos on the outer wall of the packaging box should be clear and neat, and the content is as follows: a) Manufacturer name and address:
b) Product model and name:
c) Name and address of the consignee:
d) Packing number:
e) Total weight, kg;
f) Box size (length × width × height), mm; g) "Total × boxes, × box" and "Handle with care", "Upward", etc. The words and logos on the packaging box should be written on the front of the packaging box with black paint, and should be guaranteed not to be blurred due to rain erosion or long time. 7.5
The technical documents supplied with the product include: 7.6
a) Packing list:
b) Certificate of conformity:
c) Instructions for use.
7.7 The accompanying technical documents should be packed in a moisture-proof bag, fixed in the designated position in the box, and the words "Random documents are here" should be marked on the outer wall of the box.
3 The product should be stored in a dry place that is rainproof, moisture-proof and well ventilated. 7.8
People's Republic of China
Mechanical Industry Standard
Impulse Dust Collector
JB/T9053-2000
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
100044)
Word count 12.000
Format 880×12301/16 Printing sheet 1/2
First edition in August 2000 First printing in August 2000 Price 10.00 yuan
Print run 1-500
2000-075
Mechanical Industry Standard Service Network: 000063 The packaging of the dust collector shall comply with the following provisions: a) The whole product or the parts transported separately must comply with the relevant requirements for land, water transportation and loading; 4
JB/T9053-2000
b) The packaging method of the whole product or parts can be naked packaging, box packaging, bundled packaging and box packaging according to actual requirements. The packaging should ensure that no damage occurs under normal transportation conditions:
c) All products weighing more than 150kg should have slides: d) When packaging in wooden boxes, the dust collector must be firmly fixed to the base of the box. There should be a distance of 50~80mm between the dust collector and the box wall, and the middle should be tightly plugged with wooden or wooden and felt-covered support members. 7.4 The words and logos on the outer wall of the packaging box should be clear and neat, and the content is as follows: a) Manufacturer name and address:
b) Product model and name:
c) Name and address of the consignee:
d) Packing number:
e) Total weight, kg;
f) Box size (length × width × height), mm; g) "Total × boxes, × box" and "Handle with care", "Upward", etc. The words and logos on the packaging box should be written on the front of the packaging box with black paint, and should be guaranteed not to be blurred due to rain erosion or long time. 7.5
The technical documents supplied with the product include: 7.6
a) Packing list:
b) Certificate of conformity:
c) Instructions for use.
7.7 The accompanying technical documents should be packed in a moisture-proof bag, fixed in the designated position in the box, and the words "Random documents are here" should be marked on the outer wall of the box.
3 The product should be stored in a dry place that is rainproof, moisture-proof and well ventilated. 7.8
People's Republic of China
Mechanical Industry Standard
Impulse Dust Collector
JB/T9053-2000
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
100044)
Word count 12.000
Format 880×12301/16 Printing sheet 1/2
First edition in August 2000 First printing in August 2000 Price 10.00 yuan
Print run 1-500
2000-075
Mechanical Industry Standard Service Network: 000063 The packaging of the dust collector shall comply with the following provisions: a) The whole product or the parts transported separately must comply with the relevant requirements for land, water transportation and loading; 4
JB/T9053-2000
b) The packaging method of the whole product or parts can be naked packaging, box packaging, bundled packaging and box packaging according to actual requirements. The packaging should ensure that no damage occurs under normal transportation conditions:
c) All products weighing more than 150kg should have slides: d) When packaging in wooden boxes, the dust collector must be firmly fixed to the base of the box. There should be a distance of 50~80mm between the dust collector and the box wall, and the middle should be tightly plugged with wooden or wooden and felt-covered support members. 7.4 The words and logos on the outer wall of the packaging box should be clear and neat, and the content is as follows: a) Manufacturer name and address:
b) Product model and name:
c) Name and address of the consignee:
d) Packing number:
e) Total weight, kg;
f) Box size (length × width × height), mm; g) "Total × boxes, × box" and "Handle with care", "Upward", etc. The words and logos on the packaging box should be written on the front of the packaging box with black paint, and should be guaranteed not to be blurred due to rain erosion or long time. 7.5
The technical documents supplied with the product include: 7.6
a) Packing list:
b) Certificate of conformity:
c) Instructions for use.
7.7 The accompanying technical documents should be packed in a moisture-proof bag, fixed in the designated position in the box, and the words "Random documents are here" should be marked on the outer wall of the box.
3 The product should be stored in a dry place that is rainproof, moisture-proof and well ventilated. 7.8
People's Republic of China
Mechanical Industry Standard
Impulse Dust Collector
JB/T9053-2000
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
100044)
Word count 12.000
Format 880×12301/16 Printing sheet 1/2
First edition in August 2000 First printing in August 2000 Price 10.00 yuan
Print run 1-500
2000-075
Mechanical Industry Standard Service Network: 00006
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